#1C277A#1C277A

#1C277A is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.5% C 0.140 H 270.4°. Best body text is #FFFFFF at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#1C277A
RGB	rgb(28, 39, 122)
HSL	hsl(233, 63%, 29%)
HSV	hsv(233, 77%, 48%)
CMYK	cmyk(77%, 68%, 0%, 52.2%)
CIE-LAB	lab(20.45, 26.62, -48.44)
CIE-LCH	lch(20.45, 55.27, 298.79°)
OKLab	oklab(32.49% 0.0009 -0.1401)
OKLCH	oklch(32.49% 0.14 270.4)
XYZ	xyz(4.7161, 3.1026, 18.7589)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C277A #7A6F1C

analogous

#1C567A #1C277A #401C7A

triadic

#1C277A #7A1C27 #277A1C

tetradic

#1C277A #7A1C56 #7A6F1C #1C7A40

square

#1C277A #7A1C56 #7A6F1C #1C7A40

split-complementary

#1C277A #7A401C #567A1C

monochromatic

#060819 #111748 #1C277A #2737AC #3E4FD3

Accessibility & contrast

On white

12.96

#1C277A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1C277A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C277A

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C277A	#FFFFFF	#000000	##FFFFFF
##1C277A	1.00	12.96	1.62	12.96
#FFFFFF	12.96	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367D

Deuteranopia (green-blind)

#002D78

Tritanopia (blue-blind)

#003D4C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1c277a;
/* rgb */ color: rgb(28, 39, 122);
/* oklch */ color: oklch(32.5% 0.140 270.4);

Tailwind

colors: {
  custom: {
    50: '#6861a1',
    500: '#1c277a',
    950: '#000000',
  },
}

SCSS

$custom: #1c277a;
$custom-light: #6861a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c277a",
  "rgb": {
    "r": 28,
    "g": 39,
    "b": 122
  },
  "hsl": {
    "h": 232.979,
    "s": 62.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.32489,
    "c": 0.14009,
    "h": 270.4
  },
  "luminance": 0.03103
}

Semantic roles & 50–950 ramp

primary

#1C277A

secondary

#AEA244

accent

#D342E6

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1C277A

Body copy rendered with the generated semantic roles for this colour.

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